package com.heima.wemedia.interceptor;

import com.heima.model.wemedia.pojos.WmUser;
import com.heima.wemedia.thread.UserThreadLoacl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Slf4j
public class WmInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //在这里拿到请求头中的用户id,放到threadlocal中
        String userId = request.getHeader("userId");

        if (StringUtils.isEmpty(userId)){
            log.warn("用户id为空");
            return false;
        }
        WmUser wmUser = new WmUser();
        wmUser.setId(Integer.parseInt(userId));
        UserThreadLoacl.set(wmUser);
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        UserThreadLoacl.remove();
    }
}
